CIA intelligence survey of the PKI's history, structure and front organisations, May 1955, before the September 1955 elections. Section III.E (report pp. 49-50) profiles Gerwani: founded 1950 as Gerwis, renamed Gerwani at the March 1954 congress, 25,000+ members, S.K. Trimurti general chairman and Umi Sardjono chairman
Java-Bode, 16 August 1957, p. 2: a Yugoslav vice-president's party visited the National Council and was received by vice-chair Roeslan Abdulgani and members including the attorney-general, Ahem Erningpradja, S.K. Trimurti and Siwabessy. Other members were meeting on normalising the internal situation.
Compilation of US embassy Djakarta biographical despatches (2 Aug 1960) on members of the new Gotong Royong parliament. Contains profiles of Gerwani figures: Umi Sardjono (Gerwis then Gerwani chairwoman, WIDF delegate 1960), Francisca Fanggidaej (PKI women's group Gerwani board), Setiati Surasto (SARBUPRI, Gerwani link